Musical-instrument bellows.



R. A. SALLY MUSICAL INSTRUMENT BELLOWS. APPLICATION FILED MIN-15; 1916.

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UNITED STATES PATENT OFFICE.

ROBERT A. GALLY, OF CINCINNATI, OHIO, ASSIGNOR TO THE BALDWIN COMPANY, OF CINCINNATI, OHIO.

MUSICAL-IN STRUMEN T BELLOWS.

Application filed January 15, 1916.

To aZZ whom it may concern.

Be it known that 1, ROBERT A. GALLY, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in lWlusical-Instrument Bellows, of which the following is a specification.

In my prior Patents #l,034,098, of July 30, 1912, and #l,056,093, of hfarch 18, 1913, are shown two means of effecting a compound motion of the bodily movable board of a bellows reservoir, the first part of the motion of such board in parallel planes, and

the latter part of the motion of angular or hinged bellows manner of operation, one of the ends moving and the other end standing still during such latter motion. Such construction produced double the speed of change of air capacity during such latter part of the motion of such board as during the first part of such motion. As it is sometimes desirable to have a greater difference of speed of change of air capacity an improved form is now shown wherein a block or similar interrupting means is used, but instead of at the end of the board as in my said Patent #1,03 l,098, is herein set forth and claimed as at a point distant from both ends but nearer one end than the other end.

In the drawing, Figure 1 shows the movable board 1 before motion is commenced; Fig. 2 shows the same board as it has completed its first part of motion with both ends moving in similar direction, but just contacting with the interrupting means 2; and Fig. 3 shows the same board 1 after contact with the interrupting means 2, the two ends, 3 and l, of said board, moving in oppo site directions, as shown by the arrows and dotted lines.

It will be seen that with the position of the interrupting means 2 distantfrom both ends of the movable board 1 but nearer one end 3 than to the other end A, the later period of motion of said board 1 will be with the minor surface A balancing against a similar surface B at the other side of the interrupting means, such two surfaces therefore being neutralized, and the effective ca- Specification of Letters Patent.

Patented July 17, 1917.

Serial No. 72,282.

C were acting on angular motion from the end of A where the interrupting means was placed, thus being much less difference of air capacity change from the initial parallel motion of the board than in the present structure where so much of the surface is neutralized by the balanced condition of surfaces A and B.

It is understood that the bellows reservoir now described is connected to any suitable pumpers, as 5 and 6, and also to the action of amusical instrument in the usual manner as by channel 7, the spring 8 being positioned in opposition to the collapsing movement of the board 1.

lVhat I claim as my invention is:

1. A musical instrument bellows reservoir having a bodily movable board free to move at both ends in the same direction during the first part of its motion, and means adapted to interrupt the later motion of said board at a point distant from both ends, but nearer one end than to the other end.

2. A musical instrument bellows reservoir having a bodily movable board free to move at both ends in the same direction dur ing the first part of its motion, and means adapted to interrupt the later motion of said board at a point distant from both ends but nearer one end than to the other end, and permitting the continuation of the movement of one end of said board in the same direction as before the said interruption at the said point distant from both ends.

3. A musical instrument bellows reservoir having a bodily movable board free to move at both ends in the same direction during the first part of its motion, and means adapted to interrupt the later motion of said board at a point distant from bot-l1 ends but nearer one end than to the other end, and permitting the continuation of the movement of one end of said board in the same direction as before the said interruption at the said point dist-ant from both ends, and permitting the movement of the other end of said board in the opposite direction of its movement than that before the said interruption of the point distant from both ends.

at. A musical instrument bellows reseradapted to interrupt the later motion of said board at a point distant from both ends but nearer one end than tothe other end,

7 and permit a further movement of the board in opposite directions at its two ends.

5. A musical instrument bellows reservoir having a bodily movable board free to move at both ends in the same direction'during the first part of its motion, and means adapted to interrupt the later motion of said board at a point distant from both ends, but nearer one end than to the other end, and a spring opposed tojthe motion of said board. 7

6. A musical instrument bellows reservoir having a bodily movable board free to move at both ends in the same direction during the Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

